To find out the cam type of your 2012 Chevrolet Malibu, I recommend:
1. Checking your owner's manual: It should have details about the engine and specifications.
2. Looking up your car's VIN (Vehicle Identification Number) online: Many websites, including car parts retailers and repair manuals, allow you to search for your car's specific information using the VIN.
3. Contacting a Chevrolet dealership: They can provide you with the exact information for your specific vehicle.
4. Consulting a trusted mechanic: A mechanic can inspect your car and tell you the cam type.
Please remember that knowing the exact cam type is important if you are planning to do any engine work.